A. I think it's attainable if you meet some of the following conditions:
1Infatuatory love inspiring emotions, focus and chivalry
2Admiration for each others' spirits and character
3Desire to grow, work together and achieve dreams together
4Each person has a good character with plenteous virtues and is on the whole 5idealistic and honest
6Make honest efforts to cooperate and bond and be faithful
7Type of people who reflect and better themselves and confront and solve problems
8Enjoy the security of monogamy and have a lifestyle in which it is enjoyed, discouraging "other ideas" and discipline lapses
B. I think you're in trouble if some or both partners:
1Are dishonest or only have a veneer of honesty but are cheaters--physiologically, academically/intellectually, socially, spiritually, professionally, etc.--
1bAre selfish, with a low level of social and humanitarian consciousness
2Spiritually shallow and not of idealistic predispositions
3Have unfinished business and demons
4Enjoy making out and sexing many people
5Insecure and in the habit/lifestyle of feeding those insecurities ( this has stereotypical mass culture manifestations for respective genders)
6Ruthless and political
C. Now even the best of us can fall through, but by and large I think the problem with our society is too many people fall in the second category and that is not going to change because the entire system, of working lives, familial arrangements, school and professions, culture and media, and religion, is very flawed and a negative actual dynamic and ethos prevails.
D. Now I am not a total curmudgeon. People have struggles and it's a harsh lonely world. Yes We need great change in our society but I'd be glad if people at least start thinking and making medium changes. Being greedy and crazy horny and ambitious and having demons is all fine. Combine it with a healthy reflective intellectual artistic and spiritual life. Try to better yourself all the while. Have dreams and ideals and not just McMansion cliche mtv social media fake Christian bullsh1t ones. You'll find that you can get what you want much better, ambition wise and sexually speaking, if you put a little work in for true good than being a total scoundrel. But just my two cents.